Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
bati
←
Proto-Germanic
*batô
(derived)
←
Old Norse
bati
(derived)
→
Danish
både
(cognate)
→
Icelandic
bót
(link)
→
Icelandic
afturbati
(mention)